Results 21 to 30 of about 11,433 (246)
Shiyou jixie, 2023 In order to achieve the objective of “high yield and beneficial development in scare wells of wide spacing”, effectively produce geological reserves and improve the single well production of shale gas, pilot test of well with ultra-long horizontal ...
Du Xiaoyu +4 more
doaj
Energies, 2020 We present our new designed concentric Hele-Shaw cell geometry with dynamic similarity to a real field wellbore annulus during primary cementing, and then, the results of displacement flow of Newtonian and yield-stress non-Newtonian fluids in it are ...
Amir Taheri +3 more
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Advanced Engineering Materials, EarlyView.The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal +2 more
wiley +1 more source
Simulation and Analysis of Density Control Technology for Cementing Slurry Mixing Units in China
Shiyou jixie, 2021 As more and more large diameter well, deep well and ultradeep well are put into application in the process of petroleum exploration and development, especially, the ocean resources are further developed, higher requirements are put forward for the ...
Chen Chunxia, Sun Xiang'e
doaj
Stress-strain state and performance of a high rockfill dam with a grout curtain [PDF]
Инженерно-строительный журнал, 2017 This paper examines the results of numerical simulation of the stress-strain state (SSS) in a rockfill dam 235 m tall, with a massive three-tier grout curtain used as the impervious element.
M.P. Sainov, F.V. Kotov
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Advanced Engineering Materials, EarlyView.The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan +4 more
wiley +1 more source
GeofluidsAccurate characterization of the feature parameters of lost circulation channels in fractured formations is of great significance for assessing lost circulation risk and designing effective leakage prevention and plugging strategies.
Jinjun Hu +6 more
doaj +1 more source
EnergiesDuring natural gas field extraction, downhole compressors frequently encounter gas-liquid two-phase flow conditions, yet the internal flow characteristics and performance evolution mechanisms remain insufficiently understood.
Mingchen Cao +5 more
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Energies, 2020 Oil well cleanup fluids (pre-flushes) are intermediate fluids pumped ahead of the cement slurry; they are able to clean the well walls by removing the filter cake formed by the drilling fluid, and leave the surface water-wet.
Elayne A. Araújo +6 more
doaj +1 more source
Energies, 2022 This study aims to develop a novel low-heat cement slurry using phase change microcapsule additives to reduce the decomposition of hydrate-bearing sediments during cementing.
Guokun Yang +6 more
doaj +1 more source